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1、GuidetoMAMMALSBenMorganDKPublishing,Inc.LONDON,NEWYORK,MUNICH,MELBOURNE,ANDDELHICONTENTSProjectEditorDeborahLock4ArtEditorJacquelineGoodenU.S.EditorMargaretParrishWHATISAMAMMAL?PublishingManagerSueLeonardManagingArtEditorClareSheddenCategoryPublisherMaryLing6DTPDesignerAlmuden
2、aDíazTEMPERATURECONTROLPictureResearchBridgetTilyJacketDesignDeanPriceProductionLindaDare8FirstAmericanEdition,2003REPRODUCTIONPublishedintheUnitedStatesbyDKPublishing,Inc.375HudsonStreet10NewYork,NewYork10014GROWINGUP03040506070810987654321Copyright©2003DorlingKindersleyLimit
3、ed12AllrightsreservedunderInternationalandPan-AmericanCopyrightConventions.NopartofthispublicationmaybePRIMITIVEPRIMATESreproduced,storedinaretrievalsystem,ortransmittedinanyformorbyanymeans,electronic,mechanical,photocopying,recordingorotherwise,withoutthepriorwrittenpermissi
4、onofthecopyrightowner.14PublishedinGreatBritainbyDorlingKindersleyLimited.MONKEYBUSINESSLibraryofCongressCataloging-in-PublicationDataMorgan,Ben,1968-16DKguidetomammals/BenMorgan.--1stAmericaned.v.cm.--(DKguides)THEAPESISBN0-7894-9581-3(hardcover)1.Mammals--Juvenileliterature.
5、[1.Mammals.]I.Title.II.Series:DKguidesseries.QL706.2.M66200318599--dc212002153309BRAINPOWERColorreproductionbyGRBEditrice,S.r.l.,Verona,ItalyPrintedandboundbyMondadoriPrintingS.p.A.,Verona,Italy20SeeourcompleteproductlineatONTHEHOOFwww.dk.com2244LANDGIANTSCOLORANDCAMOUFLAGE244
6、6INCREDIBLEJOURNEYSINSECTEATERS2648CATFAMILYONTHEWING2850KILLERCATSLIFEINWATER3052BEARNECESSITIESOCEANGIANTS3254DOGFAMILYMARSUPIALS3456SOCIALLIVESTAMINGTHEBEAST3658SMALLANDWILYURBANLIVING3860RODENTSANDRABBITSWEIRDANDWONDERFUL4062HOMESANDSHELTERSMAMMALDATA4264ENDURANCEINDEXDKGU
7、IDETOMAMMALSWHATISAMAMMAL?SIXTY-FIVEMILLIONYEARSAGO,agiganticcometslammedintoEarthandwreckedtheplanet’sclimate.Itwasacatastropheforthedinosaurs—theywerewipedoutentirely—butitclearedthewayforanotherclassofanimalstotakeover.Themammals(classMammalia)werelittlemorethansmall,nervou
8、screaturesofthenightatthattime,buttheyhadalreadyevolvedsomeMI